March 9 STS-131 Briefing 9 a.m. - Program Overview Briefing - JSC (Public and Media Channels) 10:30 a.m. - STS-131 Mission Overview Briefing - JSC 12 p.m. - STS-131 Spacewalk Overview Briefing - JSC 1 p.m. - STS-131 Education Overview Brie…